Michael L. Bird
21-Apr-2001, 17:05
I recently obtained a Polaroid 405 film holder that appears to be in excellent s hape. There were no instructions with the holder. The only possible problem I can detect is that one of the rollers does not rotate as freely as the other. I nstead of spinning freely, it takes a slight nudging to keep rolling.
I am testing this back with type 679 film packs, which I loaded in daylight. Th e film sheets sequence just fine, with each pull-tab leader protruding from the rubber light trap. I'm very careful to pull the film through the rollers slowly and carefully. I bought the 679 film packs from a local photo shop two days ag o. The film has a use-by date of March ?01 which I did not notice until I began problem solving.
My problem is that every exposure results in about a 2 stop, washed-out band acr oss the middle of the print. I've noticed that this is both the same width and position as the pull-tab leader. On the lens side of the negative, I also see t his band and it looks like rub marks that are just short of scratches on the sur face. This band is also present in the green "mixing tank" that occupies the sp ace between the developer past pods and the film sheet. My bellows is new.
What could be the problem? Also is it safe to open the 405 back with unexposed film in it? I have not done this, but I'm considering it to see if changing the position of the folded leaders makes a difference. Presently the leaders fit i n an indentation where the two halves of the 405 back close together.
Thanks much from a newbie!
Michael Bird
I am testing this back with type 679 film packs, which I loaded in daylight. Th e film sheets sequence just fine, with each pull-tab leader protruding from the rubber light trap. I'm very careful to pull the film through the rollers slowly and carefully. I bought the 679 film packs from a local photo shop two days ag o. The film has a use-by date of March ?01 which I did not notice until I began problem solving.
My problem is that every exposure results in about a 2 stop, washed-out band acr oss the middle of the print. I've noticed that this is both the same width and position as the pull-tab leader. On the lens side of the negative, I also see t his band and it looks like rub marks that are just short of scratches on the sur face. This band is also present in the green "mixing tank" that occupies the sp ace between the developer past pods and the film sheet. My bellows is new.
What could be the problem? Also is it safe to open the 405 back with unexposed film in it? I have not done this, but I'm considering it to see if changing the position of the folded leaders makes a difference. Presently the leaders fit i n an indentation where the two halves of the 405 back close together.
Thanks much from a newbie!
Michael Bird